Search for dissertations about: "satellite"

Showing result 1 - 5 of 410 swedish dissertations containing the word satellite.

2. 1. On Satellite Gravity Gradiometry

   Author : Mehdi Eshagh; Lars Erik Sjöberg; Zdenek Martinec; KTH; []
   Keywords : NATURAL SCIENCES; NATURVETENSKAP; satellite orbit; atmosphric desity model; lateral density variation; validation downward continuation; joint inversion; ring modification; Earth sciences; Geovetenskap;

   Abstract : .... READ MORE

4. 2. The GLAST Satellite Calorimeter

   Author : Georg Johansson; Avdelningen för Biomedicinsk teknik; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; GLAST; CsI Tl crystals; electromagnetic calorimeter; hodoscopic assembly; satellite-born detector; Dark Matter; cosmic gamma radiation;

   Abstract : The Gamma Ray Large Area Space Telescope (GLAST) is a multi-national satellite mission with aim to study the high-energy gamma ray sky. The main instrument is the Large Area Telescope (LAT) that consists of 16 towers, each housing a silicon strip precision tracker and a CsI(Tl) calorimeter. READ MORE

5. 3. A Software-Defined Baseband for Satellite Ground Operations : Feasibility and Design

   Author : Moses Browne Mwakyanjala; Jaap van de Beek; Élcio Jeronimo de Oliviera; Jaan Praks; Luleå tekniska universitet; []
   Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; Software-Defined Radios; Satellite Ground Operations; Satellite Telemetry; Command; and Tracking; Onboard space systems; Rymdtekniska system;

   Abstract : Satellite telemetry, tracking, and command (TT&C) is a crucial activity needed to maintainthe health of a spacecraft or sometimes to facilitate payload data download. TT&Cground operations are facilitated by a communication device known in the TT&C communityas a baseband. READ MORE

6. 4. Mobile Satellite Broadcast and Multichannel Communications : analysis and design

   Author : Cristoff Martin; Björn Ottersten; Jack Winters; KTH; []
   Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Signalbehandling; communications; satellite broadcast; mobile; MIMO; asymptotic analysis; spatial multiplexing; Signalbehandling; Signal processing; Signalbehandling;

   Abstract : In this thesis, analytical analysis and design techniques for wireless communications with diversity are studied. The impact of impairments such as correlated fading is analyzed using statistical models. Countermeasures designed to overcome, or even exploit, such effects are proposed and examined. READ MORE

7. 5. Satellite observations of auroral acceleration processes

   Author : Lars Eliasson; Umeå universitet; []
   Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Aurora; particle acceleration; space plasma; magnetosphere; ionosphere; polar cap; satellite observations;

   Abstract : Measurements with satellite and sounding rocket borne instruments contain important information on remote and local processes in regions containing matter in the plasma state. The characteristic features of the particle distributions can be used to explain the morphology and dynamics of the different plasma populations. READ MORE